ProgressBar 进度条

SHIT--

Usage:

NSTS::CProgressBar g_pb;
NSTS::CProgressBar g_pb2;


WM_INITDIALOG:
RECT rcpb = { 0, 0, 100, 20 };

assert (g_pb.Init (hInst, hwndDlg, &rcpb));
assert (g_pb2.Attach (GetDlgItem (hwndDlg, IDC_PROGRESS1)));
assert (g_pb2.SetStep (5));

// 背景颜色
assert (g_pb2.SetBkColor (RGB (128, 128, 255)));
// 进度条颜色
assert (g_pb2.SetIndicatorColor (RGB (255, 0, 0)));

---
assert (g_pb.StepIt ());
assert (g_pb2.StepIt ());

PS:

这只是封装微软的进度条，当然自己实现比较好，可以做美化，以及实现百分比显示。

#ifndef    progressbarH
#define    progressbarH

namespace NSTS {

#include <Windows.h>
#include <commctrl.h>

class CProgressBar {
public:
    CProgressBar (void) {
        m_hSelf = NULL;
        m_hParent = NULL;
        m_iStep = 10;
        m_hInst = NULL;
    };
    ~CProgressBar (void) {
        Destroy ();
    };
    
    bool    Init (HINSTANCE hInst, HWND hParent, const RECT* prc, bool fSmooth = false, bool fHorizon = true) {
        Destroy ();
        if (hInst == NULL || !IsWindow (hParent) || prc == NULL) {
            return false;
        }
        
        InitCommonControls ();
        
        m_hSelf = CreateWindowEx (0, 
                                PROGRESS_CLASS,
                                NULL,
                                WS_CHILD | WS_VISIBLE | (fSmooth ? PBS_SMOOTH : 0) | (fHorizon ? 0 : PBS_VERTICAL),
                                prc->left,
                                prc->top,
                                prc->right - prc->left,
                                prc->bottom - prc->top,
                                hParent,
                                NULL,
                                hInst,
                                NULL);
        if (m_hSelf == NULL) {
            return false;
        }
        
        m_hParent = hParent;
        m_hInst = hInst;
        
        return true;
    };
    void    Destroy (void) {
        if (IsWindow (m_hSelf)) {
            DestroyWindow (m_hSelf);
        }
        
        m_hSelf = NULL;
        m_hParent = NULL;

        m_iStep = 10;
        m_hInst = NULL;
    };
    bool    Attach (HWND hPB) {
        if (IsWindow (hPB)) {
            m_hParent = GetParent (hPB);
            m_hSelf = hPB;
            
            return true;
        }
        
        return false;
    };
    
    bool    StepIt (void) {
        if (IsWindow (m_hSelf)) {
            SendMessage (m_hSelf, PBM_STEPIT, (WPARAM)0, (LPARAM)0);

            return true;
        }
        
        return false;
    };
    
    bool    SetStep (int iStep) {
        if (IsWindow (m_hSelf) && iStep > 0) {
            SendMessage (m_hSelf, PBM_SETSTEP, (WPARAM)iStep, (LPARAM)0);
            m_iStep = iStep;
            
            return true;
        }
        
        return false;
    };
    
    bool    SetPos (int iPos) {
        if (IsWindow (m_hSelf) && iPos > 0) {
            SendMessage (m_hSelf, PBM_SETPOS, (WPARAM)iPos, (LPARAM)0);
            
            return true;
        }
        
        return false;
    };
    
    bool    SetLength (int iLength) {
        if (IsWindow (m_hSelf) && iLength > 0) {
            SendMessage (m_hSelf, PBM_SETRANGE32, (WPARAM)0, (LPARAM)iLength);
            return true;
        }
        
        return false;
    };
    
    
    int        GetCurrentPos (void) const {
        if (IsWindow (m_hSelf)) {
            return ((int)SendMessage (m_hSelf, PBM_GETPOS, (WPARAM)0, (LPARAM)0));
        }
        
        return -1;
    };
    
    int        GetLength (void) const {
        if (IsWindow (m_hSelf)) {
            return ((int)SendMessage (m_hSelf, PBM_GETRANGE, (WPARAM)FALSE, (LPARAM)NULL));
        }
        
        return -1;
    };
    
    int        GetStep (void) const {
        if (IsWindow (m_hSelf)) {
            return m_iStep;
        }
        
        return -1;
    };
    
    
    bool    SetBkColor (COLORREF clrBk) {
        if (IsWindow (m_hSelf)) {
            SendMessage (m_hSelf, PBM_SETBKCOLOR, (WPARAM)0, (LPARAM)clrBk);
            return true;
        }
        
        return false;
    };
    
    bool    SetIndicatorColor (COLORREF clrIndicator) {
        if (IsWindow (m_hSelf)) {
            SendMessage (m_hSelf, PBM_SETBARCOLOR, (WPARAM)0, (LPARAM)clrIndicator);
            return true;
        }
        
        return false;
    };


    HWND    GetHwnd (void) const { return m_hSelf; };
    HWND    GetParent (void) const { return m_hParent; };
private:
    HWND    m_hSelf;
    HWND    m_hParent;
    HINSTANCE    m_hInst;
    
    int        m_iStep;
};

}

#endif // progressbarH